大跨钢结构中钢棒自重对受力的影响

THE EFFECTS OF GRAVITY ON THE MECHANICAL BEHAVIOR OF STEEL BAR IN LARGE SPAN STEEL STRUCTURE

推导了钢棒挠度的精确计算公式 ,并通过简化方法给出了近似计算公式。通过算例分析了钢棒自重对跨中挠度、弯矩和应力的影响。

The accurate formula of deflection of the steel bar is deduced,and an approximate formula by simplified method is also given The effects of gravity on the deflection,bending moment and stress of the midspan are analysed based on an example